Ab initio line-shape calculations for the S and O branches of H2 perturbed by He

Abstract : We report the results of ab initio investigation of the S and O branches of the hydrogen molecule perturbed by helium atom. The calculations, based on close-coupling scheme, were performed for vibrational bands from v = 0 to v = 5, and rotational levels up to j = 5. We provide the pressure broadening and shifting coefficients and the real and imaginary parts of Dicke contribution to the Hess profile. The results are important for astrophysical studies, for example as a reference data for studying the gas giants’ atmospheres.
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Submitted on : Thursday, January 17, 2019 - 2:46:15 PM
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H. Jóźwiak, Franck Thibault, N. Stolarczyk, P. Wcisło. Ab initio line-shape calculations for the S and O branches of H2 perturbed by He. Journal of Quantitative Spectroscopy and Radiative Transfer, Elsevier, 2018, 219, pp.313-322. ⟨10.1016/j.jqsrt.2018.08.023⟩. ⟨hal-01881046⟩

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